Knockdown paper box.



F. V. POWELL.

KNOCKDOWN PAPER BOX.

APPLICATION FILED 1AN.5.1912.

9 l @@,7 v Patented July-11,1916.

mw 05M x' "n m w f u w 4` To all whom `t may concern:

y arranger.

TUBING COMPANY, 0F

nnoonnown narran non.

`Re flower-a.,

it known that ll, FRANCIS,

' a citizen of the United States, residing at Anderson, Madison county, llndiana, have invented certain new and useful lnip'royen ments in Knockdown Paper Boxes, of which the following is a specification.

4 My invention relates more particularly to that form of box which is made from a single blank of heavy paper or cardboard suitably shaped and scored, and bent up along the edges of the body of the blank and at right angles thereto to yform side and end walls which are locked together at their adjacent ends to form the corners'.

My Pinvention has in view the production of a box which is very readily. setup into the engaged, ity will `2 is anflsometric view shape it occupies when in use and knocked down to the blank form for shipment or storage, in which the corners are heavily reinforced to prevent crushing and the lock so constructed that,-while it may be readily Ahold the' walls Asecurely against accidental displacement in use.

lVith this object in view, my invention consists inthe box as covered by the follow ing claim, aspecific form of which is disclosed in the specication below" and the accompanying drawings for ,the purpose of illustration; though my invention is not limited thereto except in so far as the claim specifiesthe construction thereof.

ln the drawings accompanying the specication and forming a part thereof, Figure 1` is a view, in plan, of the box blank; Fig.

condition for use; andillig. 3'is a fragmentary view, position which it occupies in the course of setting the-box up.

'llhe box may be case of each line to the margin of the bln.

ANDERSDN, INDJIANA, A. CORPORATION OF ENDIANA.

. Specication of Letters Patent. Pmlggjmtgql @Tully 1ML, jlwjlo l Application filed January 5, 1912. Serial No. 669,525. i

`walls respectively is not cut away or severedset up,

cent side of the box, and which slit is engaged by ya locking tongue or tab n formed showing the box in' showing a corner of the box in a L slipped when the walls are brought to their ultimate made of any well known or suitable material, such as paper board of'V instance is 'shown' compared lto its' form and dimensions 'lhe blank is ordinarily scored along' renners v. rownrn, or annniason, rnnrnna, nssrenon Yro 'rnn snr'ron rrannrao- The material comprised in the angle between adjacent lines of the ends of the side and end from either adjacent wall, as is frequently done in boxes of this character, but is scored diagonally along the lines lo, whichlines substantially divide the angles between the adjacent ends of the walls. When the box is the material within each angle be tween the ends' of adjacent walls and constituting the corner fold is folded or doubled upon itself along the line 7c and laid back along one of the adjacent walls, which in the construction shown is a side wall. Said wall is provided at a convenient point with an angular slit m, one leg of which is parallel andthe other at an angle to the adja# from the material of the corner fold. For this purpose the` latter is out away on an angle, as at Z, to the score 7c, so that when the corner fold is swung back upon the line i to lie against the side wall, the point of meeting of the edge'l and the' score 7c will approximately coincide with the inner end of the angular slit m. Upon the other leaf o of the corner fold or tongue a which is provided with a hook portion having locking edge p and is adapted to enter within ln setting up the raised to a position tom of ythe box,

folded outward and the leaves thereof brought together. llt is then foldedl around tolie dat against the outer side of the adja cent side wall, and the locking tongue through the angular slit. 'llhen perpendicular to the botnotch r at the base of the the point of the relative positions, locking tongue is drawn to is formed a locking tab Y and engage the slit mh box, the walls are first each corner foldlbei/ng tion of theI tongue extending above the hori- -zontal leg of the slit.

llt will be observed that thepneck portion of the tongue notch r isl but slightly less in thickness than the length of the inclined portion of the lslit in which itis located when the pox is set up, so that there ris little or no relative rnove-v ment of. the parts',

roo between the edge p and the while at the same time the angular slit permits its entirelength to be used in inserting the tongue,

By reason of the fold along the line c and the presence'of the inner leaf of the corner fold, the looking tongue which is formed on the outer leaffof the locking fold is pressed outwardly to some extenty against the side Wall at the edge of the slit, and in this manner is more firmly held than it would be were the tongue formed onv a single thickness of material. Furthermore, the double 4thickness of material along the line c tends to prevent the corner fold entering the slit-V l claim: A knockdown box comprising a bottom c,

side Walls a, end Walls c, (Z, corner folds doubled upon a line 7c diagonal to the angle between the scoring between the bottoni and. the adjacent side and end Walls and folded back against one of said Walls, the innei` leaf of the corner fold being cut away upon the line Z extending from the line to the adjacent upper corner of the side wall, the outerleaf of the corner fold being formed With a locking tongue comprising an out Wardly directed hook terminating at one 1` edge at the line of fold of the corner fold and projecting over the edge Z of the inner leaf, the Wall against which the corner fold is laid being provided with a slit m for receiving the hooked tongue.

FRANCIS V. POWELL. Witnesses:

FRANK E. KIMBLE, EDNA BRANKLE. 

